Work, Energy and Power (JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics): Questions 1 - 3 of 15

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Question number: 1

» Work, Energy and Power » Work-Energy Theorem

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Appeared in Year: 2014

MCQ▾

Question

Consider an elliptically shaped rail in the vertical plane with and . A block of mass is pulled along the rail from with a force of , which is always parallel to line (see the figure given). Assuming no friction losses, the kinetic energy of the block when it reaches is . The value of is:

(take acceleration due to gravity )

An elliptically shaped rail PQ

An Elliptically Shaped Rail PQ

In figure an elliptically shaped rail is shown.

Choices

Choice (4) Response

a.

5

b.

7

c.

6

d.

10

Question number: 2

» Work, Energy and Power » Conservation of Mechanical Energy

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Appeared in Year: 2009

MCQ▾

Question

A thin uniform rod of length and mass is swinging freely about a horizontal axis passing through its end. Its maximum angular speed is . Its centre of mass rises to a maximum height of: (AIEEE)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 3

» Work, Energy and Power » Potential Energy

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Appeared in Year: 2015

MCQ▾

Question

A particle of unit mass is moving along the axis under the influence of a force and its total energy is conserved. Four possible forms of the potential energy of the particle are given in column ( and are constants). Match the potential energies in column to the corresponding statement (s) in column .

Potential energies and action of forces

In above table, list of potential energies and actions of force are given.

(A)

(P)

The force acting on the particle is zero at

(B)

(Q)

The force acting on the particle is zero at

(C)

(R)

The force acting on the particle is zero at

(D)

(S)

The particle experiences an attractive force towards in the region

(T)

The particle with total energy can oscillate about the point

Choices

Choice (4) Response

a.

AND

b.

c.

d.

All a. , b. and c. are correct

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